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In-house texture measurement using a compact neutron source

In order to improve the instrumental accessibility of neutron diffraction techniques, many emerging compact neutron sources and in-house neutron diffractometers are being developed, even though the precision level of neutron diffraction experiments performed on such instruments was thought to be inc...

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Autores principales: Xu, Pingguang, Ikeda, Yoshimasa, Hakoyama, Tomoyuki, Takamura, Masato, Otake, Yoshie, Suzuki, Hiroshi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Union of Crystallography 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7133061/
https://www.ncbi.nlm.nih.gov/pubmed/32280321
http://dx.doi.org/10.1107/S1600576720002551
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author Xu, Pingguang
Ikeda, Yoshimasa
Hakoyama, Tomoyuki
Takamura, Masato
Otake, Yoshie
Suzuki, Hiroshi
author_facet Xu, Pingguang
Ikeda, Yoshimasa
Hakoyama, Tomoyuki
Takamura, Masato
Otake, Yoshie
Suzuki, Hiroshi
author_sort Xu, Pingguang
collection PubMed
description In order to improve the instrumental accessibility of neutron diffraction techniques, many emerging compact neutron sources and in-house neutron diffractometers are being developed, even though the precision level of neutron diffraction experiments performed on such instruments was thought to be incomparable with that of large-scale neutron facilities. As a challenging project, the RIKEN accelerator-driven compact neutron source (RANS) was employed here to establish the technical environment for texture measurements, and the recalculated pole figures and orientation distribution functions of an interstitial-free steel sheet obtained from RANS were compared with the results from another two neutron diffractometers well established for texture measurement. These quantitative comparisons revealed that the precise neutron diffraction texture measurement at RANS has been realized successfully, and the fine region division of the neutron detector panel is invaluable for improving the stereographic resolution of texture measurements. Moreover, through selectively using the parts of the obtained neutron diffraction patterns that exhibit good statistics, the Rietveld texture analysis improves the reliability of the texture measurement to a certain extent. These technical research results may accelerate the development of other easily accessible techniques for evaluation of engineering materials using compact neutron sources, and also help to improve the data-collection efficiency for various time-resolved scattering experiments at large-scale neutron facilities.
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spelling pubmed-71330612020-04-10 In-house texture measurement using a compact neutron source Xu, Pingguang Ikeda, Yoshimasa Hakoyama, Tomoyuki Takamura, Masato Otake, Yoshie Suzuki, Hiroshi J Appl Crystallogr Research Papers In order to improve the instrumental accessibility of neutron diffraction techniques, many emerging compact neutron sources and in-house neutron diffractometers are being developed, even though the precision level of neutron diffraction experiments performed on such instruments was thought to be incomparable with that of large-scale neutron facilities. As a challenging project, the RIKEN accelerator-driven compact neutron source (RANS) was employed here to establish the technical environment for texture measurements, and the recalculated pole figures and orientation distribution functions of an interstitial-free steel sheet obtained from RANS were compared with the results from another two neutron diffractometers well established for texture measurement. These quantitative comparisons revealed that the precise neutron diffraction texture measurement at RANS has been realized successfully, and the fine region division of the neutron detector panel is invaluable for improving the stereographic resolution of texture measurements. Moreover, through selectively using the parts of the obtained neutron diffraction patterns that exhibit good statistics, the Rietveld texture analysis improves the reliability of the texture measurement to a certain extent. These technical research results may accelerate the development of other easily accessible techniques for evaluation of engineering materials using compact neutron sources, and also help to improve the data-collection efficiency for various time-resolved scattering experiments at large-scale neutron facilities. International Union of Crystallography 2020-03-25 /pmc/articles/PMC7133061/ /pubmed/32280321 http://dx.doi.org/10.1107/S1600576720002551 Text en © Pingguang Xu et al. 2020 http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.http://creativecommons.org/licenses/by/4.0/
spellingShingle Research Papers
Xu, Pingguang
Ikeda, Yoshimasa
Hakoyama, Tomoyuki
Takamura, Masato
Otake, Yoshie
Suzuki, Hiroshi
In-house texture measurement using a compact neutron source
title In-house texture measurement using a compact neutron source
title_full In-house texture measurement using a compact neutron source
title_fullStr In-house texture measurement using a compact neutron source
title_full_unstemmed In-house texture measurement using a compact neutron source
title_short In-house texture measurement using a compact neutron source
title_sort in-house texture measurement using a compact neutron source
topic Research Papers
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7133061/
https://www.ncbi.nlm.nih.gov/pubmed/32280321
http://dx.doi.org/10.1107/S1600576720002551
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